HOW THEY WORK : “Locked and unlocked Cell Phone!”

There are days when cell phones were locked to one particular service provider. If you tried to leave that company, your phone would not work. It was locked. This phenomenon was so common in Europe and the USA. The purpose of this act was most probably meant to keep one’s clients glued to one’s own network, bearing in mind the mushrooming providers in the same area.
The New Times
Times Reporter